Gas-burning apparatus



Feb. 19 1924.

J. ZANDER cTA's BURNING APPARATUS Filed Oct. 17,1921

2 Sheets-Sheet 1 Feb. 19 1924.

J. ZANDER GAS BURNING APPARATUS Filed Oct. 17. 1921 2 Sheets-Sheet 3 Patented Feb. 19, 1924.

tronn znnnnn, or enroneo, ILLINoIs, AS

ROCKFORD, ILLINOIS, A1

s're'non TO eno. 1). nor na CORPORATION, or; cqaronmrou or ILLINOIS. i

GAS-BURNING APPARATUS.

Application filed October 7 To all whom it may camera: t

Be it known that I, Jorrr t-Znltonn, a zclt r zen of the, United States, residing atChiage, n the oun y of 00k an St of" have invented certain new and useful Improvements in; Gas-Burning Appara; tus, of which the following is a specification Illinoi Thi inven oncr lat s n; gen al tegas burning appara us, and while: cap b eo se 10 for, avariety' of purposes, it ,is shown herein for purposes of illustration as embodied a small size stearn'b'oiler,"

One, of the) primary, purposes of my pres ,v I ent invention is to providean apparatus of; I

the: character indicated, which will beihiglily efiicientdnoperation, and with, this end in! View, I havebdevisedan apparatus in which; a: mixture of air and I gas is admitted to the I burners proper, from which it is discharged intothe combustion chamber inlstrata or;

concentricrings in alternation with similarstrata of air admitted at.-,the lburner so that each stratum of air and gas mixture is inter. posed between two strata of air which ens '25 that ahot and eflicient flame is produced.

1 Another. object. ofmy invention .is to pr0= vide a burner which will supply an adequate quantity of air-in proportionto the combus; 80

struct and mount-this burner with reference to thefloor ofthelcomb'ustion chamber-that.

air will be delivered not only through the center of the burner and at spacedmadialr distances toward its perimeter, but also around the burner through the 'openingin which the burner is set, thus insuringan supply I of air to the combustion chamber to support complete combustion of;

adequate I the gas.

Still another object is to provide an ape V paratus'which can beecononiically man-u factured and'easily assembled and installed,

cient and durable in'operation; I

Otherobjects and advantages of the in-.

vention should be readily. appreciated as the same becomes better understood by reference to l the following I description when consid eredjin connection with the accompanying drawings.

hance thecombustibilityof the. miizture, so-

tible: mixture supplied thereto and .to so, con- 1 and one, which will also be economical efii-t 17, 1921. Serial n 5oe,271.

Referring to the drawings;

PATENT f F g- 1 is a ert cal iona i w of c flmjboiler equipped with myinvention;

ing anoth rp i ati ndmr nY nti0n;,I

of one otthe burners; and, a Figs. 5 and 6 are cross-sectional views of he u ner ken of e; z s e ive y-I stack 11 being provided with an auxiliary l? u n yr essee ee-the Purp s of ees-Y Po t o h a n ts: I sul n qu pp d w h 'ei er' w t r e e g p e atiis 1 3 and wlth a gas. controlling valve 14; by! means, of which the gas is caused to be dejancewith the .demands upon the boiler.

F omthi m i h as a'd l e d' hr gh a lu l y oil t the pr ent i -l' stenee th ee) b eath s to th sp i e-- b r er the s pply tea of th sebreael s.

beingub c ewn l J Y- eans. t m ni al y ope abl alv 7 Fro t b ch s '7 Fig. 2 is a, horizontal sectionalview on the I i 4 is a pla V w nan en ar d. cale an, eI' ines 5 d.,6%6I I livered to the lmain supply pipe 15 in accord-g1 r sec ene Vi w i lu rat I v Pr v nting he ea r ie of ex ss ve-I draft I P n h ombust n a ber d urner I we sh would dra o f and yd ipet an 2s.:

om com us ion e ialf ql xer etr ng a I p l p n the r ers-I Si c the stack d af sr edil pen q-dre heau ery rn o he urner t ould e j s f e g qushi -draw a efl eieatairt t erpbrfl e i r e e combustion of the gas; The b oi ler shown is} lfigth ga delivered t -m xerilfi f a y e l kn n!" pref rr d type, n prae al. form beingillustrated in my copending ape plicjation, Serial No. 50;,272, filed C )ctoloer 17, 1921;, Them xer aus a p de rmine I quantity of atmospheric vair to be. mixed with thefuel gas and this mixture isthen 10f* delivered through pipes '19, prefe ab y v'enturi'shape, to thefindividu'al, burners.

' Thebur-ners are indicated generallyein-F g-ul';

by reference character 21, and while the burn- 'ect. Each burner com rises a casin hav-,

ing a substantially rectangular central portion 24, a lower portion 25 of'reduced dimensions, and an upper portion 26 which is substantially circular in cross section. The openings 23 through the combustion chamber'floor are substantially the same size as the central'portions 24of the burners so that the burners may be introduced into position from above thefioor, from which they are suspended by lugs 27 projecting laterally from the upper portion of the burner and overlying the margins of the openings, as is best shown in Fig. 6. The lower portion 25 of each burner casing is tapped to receive the inner end of its supply pipe 19, and after a burner has been positioned, the pipe 19 is threaded into the burner casing so that While the weight of each burner is carried by the lugs 27 from the floor of the combustion chamber, the pipe 19 also serves to steady the burner and hold the same against displacement.

The lower portion of each burner casing is provided with a transversely extending passage 28 opening at opposite sides of the'casing to atmosphere through ports 29 and 31, and similarly, the central portion of the casing is provided with a transversely disposed passage 32 opening at each sideof the casing through ports 33 and 34. From Fig. 5, it will be observed that these passages 28 and 32 are closed against communication with the interior of'the burner casing. The mixture of air and gas which is delivered to the casing through the pipe 19 is accordingly preventedfrom entering these passages, but is permitted to pass upwardly through the burner and be delivered at the upper end thereof in a pluralityof rings or strata separated by similar rings or strata of air which enter from the sides of the burners into the passages 28 and 32.

A pipe or cylinder 35 extends from the upper end of. the casing into the passage 32 and a smaller but longer pipe 36 passes through the passage'32 and terminates at the lower end 'ofthe bottom wall of this passage, as will be apparent from Figs. 5 and 6. Similarly, a pipe 37 communicates with passage 28 and a pipe 38 extends through passage 28 and communicates with the interior of the casing beneath this passage. VVithin the pipe 38there is disposed still another and a smaller pipe 39v which extends entirely through the burner casing from end to end thereof and communicates with the atmosphere at the bottom of the casing.

This arrangement of pipes provides for the delivery at the top of the burner of a plurality of rings or strata of mixed air and gas, delivered by the pipe 19 into the burnercasing, from the passages 41, 42 and. 43 respectively, while atmospheric air is delivered in interposed strata from the passages 44, 45 and 46. The outermost strata is that delivered by the passage 41, and being composed of a mixture of air and gas, it is advisable to deliver additional air around this strata. This supply is automatically furnished by reason of the fact that the upper portion 26 of the burner is considerably smaller than the opening 23 in the floor so that a quantity of air may flow upwardly through this opening around the burner. In order to maintain the burner in predetermined position in the opening, it is equipped at opposite sides with fins or ribs 47 which serve as guides to retain the burner in position without ma-1 terially obstructing the. upward flow of air around thegburner. a

.In the operationof an apparatus embodying my invention, a mixture of air andgas is delivered to each burner casing through its supply pipe 19 from whence it flows upwardly through the communicating passages 41, 42 and 43 in concentric rings or strata. Air simultaneously is delivered at the top of'the burner through the passages 44, 45 and46, the supply to passage 44 being received from opposite sides of the burner through the ports '33 and 34 and the supply to passage 45 being likewise received from opposite sidesof the burner through the ports 29 and 31 At the same time, air flows upwardly around the burner so that there is delivered by each burner into the combustion chamber, a series of strata of fuel mixed with air interspersed with strata of air, with the result that sufficient air to support complete combustion ofthe gas is delivered to the point of combustion without danger of flash back such as would occur. if this amount of air were mixed with the gas before its deliveryfrom the burner.

It should be manifest, therefore, that have provided an apparatus which is economical to manufacture, easy to install, and

one which is highly eflicient and economical in operation. It sho uld also be apparent, that the invention is. capable-ofa wide va'-,

riety' of uses and in Fig. 3, 1 have illustrated it as applied to a metalmelting furnace wherein the combustion chamber; 48 is adapted to receive a melting pot'49, the products of combustion in this instance being carried off through a stack 51. Vari-,-

ous other applications of the invention will readily suggest themselves, and it should be understood therefore, that my invention is not circumscribed by the details of construction illustrated and described herein, but is capable of considerable modification within the scope of the following claims.

I claim:

1. In a gas burning apparatus, the combination of a combustion chamber provided with a floor, a burner casing projecting through said floor, the upper portion of said casing being of less cross sectional area than the floor opening, a plurality of lugs projecting from said burner over the margin of the floor opening, whereby said burner is suspended from the floor, and a plurality of fins projecting laterally from said burner for maintaining said burner in position in sald opening.

2. In a gas burnlng apparatus, the combination of a combustion chamber, a plu-v rality of burners suspended from the floor thereof, means for supplying a mixture of gas and air to the interior of each burner, said burners each comprising air passages extending transversely of the burner casing and opening at each side of the casing, a plurality of concentrically arranged tubes communicating with said passages and With the interior of the burner around the passages in alternation, and a centrally disthe burner from end to end thereof.

JOHN ZANDER. 

